Grade 8 Integrated Science Chapter 20 Lesson 2 on human impact on the land. This lesson is a detailed look into the positive and negative effects of humans to land biomes. This lesson includes topics such as resource management, the nitrogen cycle, deforestation, mining, agriculture, and urban sprawl. Students should consider the many different impacts we have on the environment everyday.
Vertebrates and Invertebrates- Biology- Key Stage 3 & 4Mahima De Alwis
This presentation is only applicable for KS3, Biology.
Done by Mahima,
I request you to Please LIKE IT or COMMENT!
This presentation talks about Invertebrates and Vertebr ates
It refers to Exploring Science 7.
Cause of Diversity
Evolution
Lamarck’s Theory of Evolution
Darwin’s Theory of Evolution
Natural Selection
Evidence of Evolution
Misconceptions
References
Key Points:
Reproduction
Needs
Types (Asexual & Sexual)
Types and process of asexual reproduction
Vegetative propagation
Sexual reproduction
Sexual reproduction in flowering plants
Types of flower
Structure of flower
Pollination & Its types
Fertilization in flowering plants
Reproduction in human
Male reproductive system
Female reproductive system
Menstruation
Reproductive health
Grade 8 Integrated Science Chapter 20 Lesson 2 on human impact on the land. This lesson is a detailed look into the positive and negative effects of humans to land biomes. This lesson includes topics such as resource management, the nitrogen cycle, deforestation, mining, agriculture, and urban sprawl. Students should consider the many different impacts we have on the environment everyday.
Vertebrates and Invertebrates- Biology- Key Stage 3 & 4Mahima De Alwis
This presentation is only applicable for KS3, Biology.
Done by Mahima,
I request you to Please LIKE IT or COMMENT!
This presentation talks about Invertebrates and Vertebr ates
It refers to Exploring Science 7.
Cause of Diversity
Evolution
Lamarck’s Theory of Evolution
Darwin’s Theory of Evolution
Natural Selection
Evidence of Evolution
Misconceptions
References
Key Points:
Reproduction
Needs
Types (Asexual & Sexual)
Types and process of asexual reproduction
Vegetative propagation
Sexual reproduction
Sexual reproduction in flowering plants
Types of flower
Structure of flower
Pollination & Its types
Fertilization in flowering plants
Reproduction in human
Male reproductive system
Female reproductive system
Menstruation
Reproductive health
Is water a limiting factor for population growth in South Australia?University of Adelaide
Professor Graeme Hugo presents the fourth installment of the Science Seminar Series entitled Is water a limiting factor for population growth in South Australia
We converted Matt's live presentation into a self-contained SlideShare in an effort to share the good work of our 4th grade students at Cherokee School. Visit http://fredkoch.edublogs.org for more student projects!
Biodiversity and its Conservation methodsNishat Fatima
Biodiversity describes the richness and variety of life on earth. It is the most complex and important feature of our planet. Without biodiversity, life would not sustain.
Biodiversity holds ecological and economic significance. It provides us with nourishment, housing, fuel, clothing and several other resources. It also extracts monetary benefits through tourism. Therefore, it is very important to have a good knowledge of biodiversity for a sustainable livelihood.
BIODIVERSITY AND HEALTHY SOCIETY BY GROUP 1KaliAndres
Biodiversity supports human and societal needs, including food and nutrition security, energy, development of medicines and pharmaceuticals and freshwater, which together underpin good health. It also supports economic opportunities, and leisure activities that contribute to overall wellbeing.
Biological diversity
It is that part of nature which includes the differences in genes among the individuals of a species.
Biological diversity deals with the nature’s variety in the biosphere.
The variety of life on Earth, its biological diversity is commonly referred to as biodiversity.
The number of species of plants, animals, and microorganisms, the enormous diversity of genes in these species, the different ecosystems on the planet, such as deserts, rainforests and coral reefs are all part of a biologically diverse Earth.
Appropriate conservation and sustainable development strategies attempt to recognize this as being integral to any approach to preserving biodiversity. Almost all cultures have their roots in our biological diversity in some way or form.
Declining biodiversity is therefore a concern for many reasons.
Back to top
Why is Biodiversity Important?
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.
For example,
A larger number of plant species means a greater variety of crops
Greater species diversity ensures natural sustainability for all life forms
Healthy ecosystems can better withstand and recover from a variety of disasters.
And so, while we dominate this planet, we still need to preserve the diversity in wildlife.
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A healthy biodiversity offers many natural services
Ecosystems such as the Amazon rainforest are rich in diversity. Deforestation threatens many species such as the giant leaf frog, shown here.
(Images source: Wikipedia)
A healthy biodiversity provides a number of natural services for everyone:
Ecosystem services, such as
Protection of water resources
Soils formation and protection
Nutrient storage and recycling
Pollution breakdown and absorption
Contribution to climate stability
Maintenance of ecosystems
Recovery from unpredictable events
Biological resources, such as
Food
Medicinal resources and pharmaceutical drugs
Wood products
Ornamental plants
Breeding stocks, population reservoirs
Future resources
Diversity in genes, species and ecosystems
Social benefits, such as
Research, education and monitoring
Recreation and tourism
Cultural values
That is quite a lot of services we get for free!
The cost of replacing these (if possible) would be extremely expensive. It therefore makes economic and development sense to move towards sustainability.
A report from Nature magazine also explains that genetic diversity helps to prevent the chances of extinction in the wild (and claims to have shown proof of this).
To prevent the well known and well documented problems of genetic defects caused by in-breeding, species need a variety of genes to ensure successful survival. Without this, the chances of extinction increases.
And as we start destroying, reducing and isolating habitats, the chances for interaction from species with a large gene pool decreases.
VCE Environmental Science: Unit 3: Biodiversity. Introduction that explains the definitions and reasons to conserve biodiversity on a genetic, species and ecosystem level.
Biodiversity is the variety of life on earth.
Biodiversity provides -food, shelter, medicine and industrial raw materials.
Biodiversity maintains the health of the earth and its people.
Biodiversity is an ecological asset to human beings.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
3. Biodiversity is…..
The total of all living organisms found on Earth:
plants, animals, microorganisms
and
the genes they contain
and
the ecosystems they are a part of.
4. There are three levels of biodiversity
1. Genetic
diversity
2. Species
diversity
3. Ecosystem
diversity
5. 1. Genetic diversity
Genes are the basic units of heredity!
High genetic diverse means there is a great
variety of genes that are present in the
population. This maximizes the adaptive
potential for a species and reduces it vulnerably
to change.
6. 1. Genetic diversity continued…
Although a species may look the same, genetic
diversity in a population is essential for survival.
High genetic diversity maximises survival potential
of a species by:
-increasing the number of different alleles in the
gene pool
-increasing the chance of adaptation to
change/threat
7. 2. Species diversity
A species is a group of organisms capable of
interbreeding and producing fertile offspring.
For example: A donkey and a horse are from
different species because their offspring is
infertile.
8. 2. Species Diversity continued…
Two types:
• Species richness: the
number of different
species in a particular
area
• Species abundance: the
amount (abundance) of
individual species in a
particular area
10. 3. Ecosystem Diversity
Different species depend on a variety of
ecosystems.
Common ecosystems include:
Forests, Rainforest, Woodlands, Shrublands,
Marine, Freshwater, Estuarine, Heath, Grassl
and, Tundra, Alpine, Desert, Riparian, Wetlan
ds
11. Let’s reflect…
What is an ecosystem?
A community of organisms that depend upon and
interact with each other and the abiotic factors
surrounding them.
What is a community?
A number of populations of different species
interacting within a particular region.
What is a population?
Groups of organisms belonging to the one species
and living together in an area
12. Ecosystems
Any group of living (biotic) and non-living
(abiotic) things that are connected together in a
self-sustaining way are called ecosystems.
An ecosystem can be as large as a desert or
lake, or as small as a tree or puddle!
13. What are the major parts of an ecosystem?
All non-living components of an ecosystem are
ABIOTIC. For example, a rock or humidity.
All living parts of an ecosystem are known as BIOTIC.
For example, a bush or lizard.
Sort the following ecosystem parts into abiotic and
biotic components:
Soil, kangaroo, atmosphere, cactus,
sunlight, water, bacteria
14. Did you know…
Earth has existed for 4.5 billion years.
Life has existed on Earth for 3.5 billion years.
Life today is therefore a result of evolution that has
taken place over those 3.5 billion years.
Modern humans have only existed for only 100,000
years but we are having negative effects on
biodiversity!
15. Threats to Biodiversity
Humans have been damaging our biosphere
and ecosystems, which is affecting our
biodiversity!
What has happened in these pictures below?
16. The Sixth Mass Extinction
• Many scientists believe that that we are in
a period of mass extinction caused by
humans.
• Globally, humans have caused the
extinction of a total of 86 flora and 723
fauna.
21. Conservation
We need high levels of
biodiversity for clean
air, food, fresh
water, clothes, energy
and medicine.
Without
biodiversity, life for
humans would be both
dull and dangerous. So
we must conserve it.
22. Conservation Categories
The International Union for
Conservation of Nature (ICUN) Red
List is a global list of threatened
species.
It divides animals into categories such
as:
• Vulnerable
• Endangered
• Critically Endangered
• Extinct in the wild
• Extinct
23.
24.
25. Although humans have been changing the Australian
landscape for 50,000 years or more, the changes in the
last 200 years have caused a terrible loss of
soil, vegetation and biodiversity.
This sounds bad! What on earth are we humans doing
to cause all this?
26. Human Changes
• Pollution: Pollution of our
oceans, our air, our rivers and
our land. Pollution from
cars, industries, energy
production, and manufacturing.
• Over-fishing in our oceans has
drastically reduced fish
stocks, to the point of
extinction in some cases.
27. • Feral plants and animals
continue to cause devastation
to native plant and animal
communities, including those
in our oceans.
• Over-consumption:
We’re simply buying and eating
and consuming too much stuff!
• Climate change will potentially
cause further problems and
threats to biodiversity.
28. Habitat loss: We’ve been clearing or damaging the natural
environment to make way for all the stuff that we need (like
building houses, grazing sheep and cows, and growing food) that
there aren’t many healthy habitats left for our native plants and
animals.
THEN NOW
29. It’s not all bad
There are things that you can do to help stop
the damage to biodiversity.
And there are lots of people who are already
working hard to help protect and restore our
biodiversity. But they do need your help. In
fact, they need the help of everybody!
• So what can you do?
31. Tips for helping biodiversity
• Use less stuff!
• Plant native plants in your garden - good for the
birds, butterflies and bees, and good for the soil!
• Pollute less by driving less, buying less and wasting less
and thinking about what you’re flushing down the drain!
• Buy organic fruit and veggies if you can - these haven’t
been sprayed with chemicals that can harm biodiversity!
• Lock up your pets at night - the night belongs to native
animals!
• Donate some time to vegetating or cleaning up a local
wildlife park!
• Choose sustainably harvested fish to have with your chips!
• Spread the word!
• For more tips and more information on biodiversity visit
the Cool Australia site (www.cool.australia.org).
32. Biodiversity Review Questions:
Q1. What are the three levels of biodiversity?
Q2. Why is genetic diversity important?
Q3. What are the two components of species
diversity?
Q4. List 3 reasons why we should conserve
biodiversity.
Q5. What are conservation categories?
Q6. How can we help conserve biodiversity?
Editor's Notes
Definition: Biodiversity is the “totality of genes, species and ecosystems in a region.”
Ensure your students understand that genes are transferred from a parent to offspring and code for particular traits, such as eye colour, fur colour, personality traits.
A night genetic diversity increase the survival potential by having a increased no. of different alleles in gene pool and increased chance of adaptation to change/threat
Ask your students what the name of the offspring is?
Get your students to compare the species richness and species diversity of sample 1 and sample 2
Students should have a clear understanding of the difference between population, community and ecosystem.
Stress to your students that the definition of ecosystem is “A groups of living things (biotic) and non-living things (biotic) interacting together in a community.” Students get confused between the definitions of environment, ecosystems, community, population and habitat.
Get your students to identify from the list of ecosystem parts the abiotic and biotic factors.Abiotic: Soil, atmosphere, water, sunlightBiotic: Kangaroo, cactus, bacteriaThe abiotic and biotic factors rely on each other.
Get students to research why the Yellow-Eyed Penguin is ‘Endangered’. Answer: The reasons for its decline may include habitat loss, predation by introduced species, human interference and disease. Local conservation groups and the New Zealand government are working to recover this lovely little species, to restore its habitats, and to protect it from new and existing threats.
Ask students to find out the difference between Critically Endangered and Endangered! Answer: an observed population decline over the last 10 years or three generations of at least 80%, occurrence is estimated to be less than 100km2, the population is estimated to be fewer than mature individuals, probability of extinction is at least 50% within 5 years.For factsheets see: http://coolaustralia.org/wp-content/uploads/2012/12/Sumatran-Orangutan-11.pdf